Changing Seas Season 9 Episode release dates & where to watch

1. The Future of Seafood

Scientists work with the private sector to develop sustainable offshore aquaculture.

2. Toxic Algae: Complex Sources and Solutions

Putrid mats of blue green algae are wreaking havoc on Florida’s shorelines. Scientists think water pollution is to blame, and if something isn’t done about it there could be irreparable damage to the environment, the local economy and people’s health.

3. The Fate of Carbon

For millennia, the exchange of CO2 between the oceans and atmosphere has been in balance. Now, with more anthropogenic carbon dioxide in the atmosphere, the oceans are taking up more CO2 as well. This additional CO2 is negatively impacting sensitive ecosystems, making scientists worry how these changes will affect the way carbon is cycled through the seas.

4. Majestic Mantas Finale

Mexico’s remote Revillagigedo Archipelago is a hotspot for oceanic mantas. Scientists use photo ID techniques and acoustic tags to study these mysterious fish. They are also researching if the filter-feeding rays are impacted negatively by microplastics – tiny pieces of toxic trash that float in the ocean.